Industrial Grade Sewing Machine comes with single and double straight-needle, super high speed over-locking features. The Sewing Machine is suitable for over-edging and blind-stitch hemming on light to medium weight knitted or woven fabrics. The Sewing Machine is equipped with a solid presser foot and double-row differential feed dog accompanied with super high speed operation of 6000 stitches per minute. Industrial Grade Sewing Machine is ideal for work environment where quality, performance and production are important with the enclosed lubrication system operates using a force-fed gear pump.